Lancaster 7-day weather forecast

Written by:
August 11, 2025
ESOlex // Shutterstock

Lancaster 7-day weather forecast

Stacker created the forecast for Lancaster, Pennsylvania using data from OpenWeather. This week's high is 83 °F on Friday, while the low is 59 °F on Wednesday. There are expected to be 3 sunny days and rain on 2 days this week.

There are currently no weather alerts.

Monday, August 18

- High of 74 °F, low of 67 °F (68% humidity)
- Overcast with a 0% chance of rain
- Moderate risk of harm from sun exposure (5 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:19 AM, sunset at 7:58 PM
1 / 6
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Tuesday, August 19

- High of 77 °F, low of 61 °F (57% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (5 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 6:20 AM, sunset at 7:56 PM
2 / 6
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Wednesday, August 20

- High of 77 °F, low of 59 °F (65% humidity)
- Mostly cloudy with a 0% chance of rain
- Moderate risk of harm from sun exposure (4 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 6:21 AM, sunset at 7:55 PM
3 / 6
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Thursday, August 21

- High of 79 °F, low of 59 °F (58% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:22 AM, sunset at 7:54 PM
4 / 6
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Friday, August 22

- High of 83 °F, low of 61 °F (60% humidity)
- Sunny with a 0% chance of rain
- Gentle breeze (11 mph wind)
- Sunrise at 6:23 AM, sunset at 7:52 PM
5 / 6
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Saturday, August 23

- High of 83 °F, low of 66 °F (62% humidity)
- Partly cloudy with a 100% chance of rain (3 mm of rain)
- Moderate breeze (18 mph wind)
- Sunrise at 6:24 AM, sunset at 7:51 PM
- New moon
6 / 6
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Sunday, August 24

- High of 81 °F, low of 65 °F (70% humidity)
- Mostly sunny with a 100% chance of rain (6 mm of rain)
- Gentle breeze (10 mph wind)
- Sunrise at 6:25 AM, sunset at 7:49 PM

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